但是这样的凌日现象已经为被证明可能是宇宙中最重要的突破之一的说法铺平了道路，这个说法即找到那些围绕其他恒星轨道公转的和地球大小相似的行星。

But such transits have paved the way for what might prove to be one of the most vital breakthroughs in the cosmos—detecting Earth-sized planets orbiting other stars.

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随着地球围绕太阳的轨道和轴的倾斜将我们带到这个半球，我们更远离直接接收太阳光线的地方。

Earth's orbit around the sun and tilt on its axis combine to carry us in this hemisphere further away from receiving the sun's rays most directly.

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哥白尼和开普勒在第谷的观察数据基础上发现，我们并不是这个宇宙的中心，其它行星围绕着太阳旋转，我们的地球也是如此。

Copernicus and Kepler built on the observations of Tycho Brahe and found that we were not the center of the universe; other planets revolved around the sun, and so do we.

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